Ulu knife



FIG. 1 is a left side elevational view of an ulu knife showing my new design.

FIG. 2 is a right side elevational view of an ulu knife showing my new design.

FIG. 3 is a front elevation view of my new design.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for an ulu knife, as shown. 